SACRAMENTO, Calif. (CBS/AP) The man accused of kidnapping, raping and holding Jaycee Dugard captive for nearly two decades wrote a jailhouse apology letter that talks about "ending a sexual problem believed to be impossible."

But according to CNN, prosecutors believe Phillip Garrido is using this letter as an opportunity to manipulate the "public perceptions" of the kidnapping case.

Garrido's handwritten letter, received Thursday by CNN affiliate KCRA, did not mention Dugard or her two daughters allegedly fathered by Garrido, said Anzio Williams, news director at the Sacramento-based station.

"First off," Garrido wrote, "I would like to apologize to every human being for what has taken place."

He continued, "People all over the world are hearing testimony that through the spirit of Christ a mental process took place ending a sexual problem believed to be impossible."

El Dorado County District Attorney Vern Pierson called Garrido a "master manipulator" who is trying to "manipulate the process, the people involved in that process, and, most significantly, his prior victims."

"It appears once again that Mr. Garrido seeks leniency due to claims of religious transformation and alleged personal change," Pierson said.

The letter was three paragraphs long. Williams said KCRA only released the one paragraph deemed newsworthy.

The station said it has received a total of three letters from Garrido. In an earlier letter, Garrido alleged Dugard's civil rights were violated during questioning by authorities.

Garrido and his wife, Nancy, are being been held at El Dorado County Jail. They were arrested in August and charged with abducting Dugard outside her South Lake Tahoe home in 1991. Prosecutors allege the couple sexually assaulted Dugard and held her in a secret compound at their Antioch, Calif., home. The couple has pleaded not guilty.